Catalyst

Potential/V (vs. RHE)

Y_NH3/μmol·cm⁻²·h⁻¹

FE%

Ref.

Pd

−0.3

112.5

89.6

[17]

Ru−LCN

−0.2

$\text{45}.0\text{2}\mu \text{mol}\cdot {\text{h}}^{-\text{1}}\cdot {\text{mg}}_{\text{cat}}^{-\text{1}}$

65.96

[18]

RuGa IMCs

−0.2

$\text{32}0.\text{6}\mu \text{mol}\cdot {\text{h}}^{-\text{1}}\cdot {\text{mg}}_{\text{Ru}}^{-\text{1}}$

72.3

[19]

Cu foam

−0.9

517.1

93.5

[20]

Cu Ti fibers

−0.6

400

90

[23]

Cu@Co

−0.5

27.20 μg·h⁻¹·cm⁻²

76.54

[21]

hcp−Co

−0.6

439.50 μg·h⁻¹·cm⁻²

72.58

[1]

Cu₆Sn₅

−0.23

10 mmol·cm⁻²·h⁻¹

96

[22]